1Brown sausage in large chunks over medium-high heat, pressing into the pan for crispy edges. Break apart, cook through, then remove, reserving 1–1½ tbsp fat.
2Sauté shallot and onion for 4–5 minutes. Add garlic and oregano for 1 minute, then stir in tomato paste and Calabrian chili. Cook 3–5 minutes until deep red.
3Deglaze with vodka and simmer for 2–3 minutes.
4Add chicken broth, chicken base, Parmesan rind, crushed tomatoes, and most of the cooked sausage. Simmer for 12–15 minutes.
5Meanwhile, whip ricotta with Parmesan, lemon zest, olive oil, salt, and pepper until smooth.
6Remove rind from soup, reduce heat, and stir in heavy cream and Parmesan.
7Add gnocchi and gently simmer for 2–4 minutes until tender. Thin with broth if needed and finish with lemon juice to taste. Serve with whipped ricotta, crispy sausage, basil, and Parmesan.